Heads up, for anyone with a Viper:
In the keymapping software, you have to leave the space directly to the right of the space bar blank, in in order for the bottom right mods to map correctly.
Otherwise, the software confuses your keyboard for an Eagle, and throws everything off.
So your bottom row should be [blank] L Key, L Key, Space [blank] R Key, R Key [blank]
Or maybe it's just mine